SHELLCHECK: Enabled 'requires-variable-braces'

* Affected Files:
* libs/hwhandler.sh
* libs/logging.sh
* libs/messages.sh
* libs/ustreamer.sh
* libs/v4l2_control.sh
* libs/v4l2rtspserver.sh

Signed-off-by: Stephan Wendel <me@stephanwe.de>

libs/hwhandler.sh

@@ -11,6 +11,8 @@
 #### This File is distributed under GPLv3
 ####
 
+# shellcheck enable=requires-variable-braces
+
 # Exit upon Errors
 set -e
 

libs/logging.sh

@@ -11,6 +11,8 @@
 #### This File is distributed under GPLv3
 ####
 
+# shellcheck enable=requires-variable-braces
+
 # Exit upon Errors
 set -e
 

libs/messages.sh

@@ -11,6 +11,8 @@
 #### This File is distributed under GPLv3
 ####
 
+# shellcheck enable=requires-variable-braces
+
 # Exit upon Errors
 set -e
 

libs/ustreamer.sh

@@ -11,6 +11,8 @@
 #### This File is distributed under GPLv3
 ####
 
+# shellcheck enable=requires-variable-braces
+
 # Exit upon Errors
 set -e
 

libs/v4l2_control.sh

@@ -13,6 +13,8 @@
 #### Description: Configure Cam with v4l2-ctl options
 #### ex.: v4l2-ctl -c brightness=100
 
+# shellcheck enable=requires-variable-braces
+
 # Exit upon Errors
 set -e
 
@@ -53,6 +55,6 @@ function v4l2_control {
         done
     }
 
-    ### MAIN
-    main
+### MAIN
+main
 }

libs/v4l2rtspserver.sh

@@ -11,6 +11,8 @@
 #### This File is distributed under GPLv3
 ####
 
+# shellcheck enable=requires-variable-braces
+
 # Exit upon Errors
 set -e